@backgroundColor: gray;
@buttonColor: #09F;
@shadowColor: darkgray;
@hoverColor: #eee;

.withShadow (@radius: 5px, @color: @shadowColor) {
  box-shadow: @radius @radius @radius @color;
  -webkit-box-shadow: @radius @radius @radius @color;
  -moz-box-shadow: @radius @radius @radius @color;
}

.roundedCorners (@radius: 5px) {
  -moz-border-radius: @radius;
  border-radius: @radius;
}